Real-world Oracle Database and EBS troubleshooting guides.

Resolving RMAN ORA-19502 Backup Failure Due to Disk Full

RMAN backup job failed with the following error:

ORA-19502: write error on file
ORA-27072: File I/O error
Linux-x86_64 Error: 28: No space left on device

Oracle Database 19c
RMAN Disk Backup
Linux Environment

Checked RMAN logs and identified the backup destination filesystem was full.

Command used:

df -h

Result showed the backup mount point reached 100% utilization.

Resolution

Cleaned older backup files and ensured sufficient disk space.

Example cleanup:

Be cautious while deleting the files by using the below command

rm -rf old_backup_files

After freeing space, the RMAN backup completed successfully.

Always monitor backup destinations to avoid failures due to disk space issues.